Laser Therapy for Pain of Rheumatoid Arthritis.Walker, J B; Akhanjee, L K; Cooney, M M; Goldstein, J; Tamayoshi, S; Segal-Gidan, FClinical Journal of Pain: 1987 Original Article: PDF Only Abstract colon; Human subjects received transcutaneous irradiation on the skin overlying peripheral nerves with a low-power helium-neon laser (1 MW, 632.5 nm, 20 Hz) for 20 s to each site. This treatment was accompanied by irradiation of the skin overlying painful joints for 4-8 min according to a predetermined protocol. Control group (n = 34) received treatment by an apparatus that looked identical to the laser apparatus but emitted no radiation. Laser or placebo therapy was repeated 3 times a week for 10 weeks. Subjects in the experimental group exhibited a highly significant reduction in pain intensity. Low-power laser may represent an adjunct in the management of the pain of rheumatoid arthritis. (C) Lippincott-Raven Publishers.